*{
    margin: 0;
    padding: 0;
}
.box {
    background: green;
    width: 50vw;
    margin: 0 25vw;
    header {
        width: 60%;
        margin: auto;
        div {
            display: inline-block;
            margin-left: 5px;
            button{
                padding: 5px 10px;
                background: red;
                color: white;
            }
        }
    }
    main {
        nav { 
            width: 20%;
            background: red;
            display: inline-block;
            ul {
                text-align: center;
                li {
                    width: 50%;
                    margin: 0 25%;
                    list-style: none;
                    background: blue;
                    color: white;
                    text-align: center;
                    margin-top:5px;
                    border-radius: 25px;
                }
            }
        }
        div {
            display: inline-block;
            width: 60%;
            color: white;
            font-size: 20px;
            text-align: center;
        }
    }
}


